Valve Device with Dual Directional Strainer

ABSTRACT

A valve device with a dual directional strainer is disclosed herein. The disclosed valve device generally comprises a body including a cylindrical wall, the body having a front face, a rear face, a top face, and a bottom face; a first arm including a cylindrical wall, wherein the first arm is attached to the rear face of the body and extends perpendicularly from the rear face of the body; a second arm including a substantially cylindrical wall, wherein the second arm is attached to the bottom face of the body and extends obliquely from the bottom face of the body; a fluid passageway extending through the cylindrical walls of the first arm and the body; and a strainer member at least partially disposed within the second arm, the strainer member being arranged and configured to strain fluids flowing through the fluid passageway from the first arm through the strainer member and into the body in a first direction and to strain fluids flowing from the first arm through the strainer member and into the body in a second direction, the second direction being opposite of the first direction. The disclosed valve device may be utilized to fluidly connect a tank to an injection pump and to a gauge.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No. 14/520,017, filed Oct. 21, 2014, which claims the benefit of U.S. Provisional Patent Application No. 62/049,553, filed Sep. 12, 2014, the disclosures of which are incorporated herein by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention generally relates to a valve device and method of use. More specifically, the present invention relates to a valve device with a dual directional strainer, which may be used for connecting an injection pump system to a tank.

2. Description of Related Art

Hydraulic fracturing is widely used in the oil and gas industry to enhance recovery of oil and natural gas. Commonly known as “fracking,” hydraulic fracturing is the propagation of fractures in a rock layer by a pressurized fluid. Hydraulic fractures are formed by drilling wellbores into reservoir rock formations and injecting large volumes of fracking fluid, primarily consisting of water, under high pressure into the wellbores. The injected fluid creates fractures in the rock formations, allowing oil or natural gas to flow from the formations to the wellbores.

From limiting the growth of bacteria to preventing corrosion of the well casing, hydraulic fracturing fluids are needed to insure that the fracturing job is efficiently and effectively performed. Undiluted hydraulic fracturing fluids are initially stored in tanks. The fluids are then injected into water at a selected rate using an injection pump system. Design problems in current systems used for connecting an injection pump system to a tank present several disadvantages that are overcome by the present invention.

One problem with current systems is that such systems do not provide a means to simultaneously filter the fluids flowing from a tank to an injection pump and flowing from the tank to a gauge. Such fluids often include particulates, dirt, and other unwanted materials that can clog or damage both the injection pump and the gauge. Currently, a valve device with a dual directional strainer is needed to prevent particulates from flowing through and damaging injection pumps and gauges.

In view of the foregoing, it is apparent that a need exists in the art for a valve device which overcomes, mitigates or solves the above problems in the art. It is a purpose of this invention to fulfill this and other needs in the art which will become more apparent to the skilled artisan once given the following disclosure.

OBJECTS AND SUMMARY OF THE INVENTION

It is an object of the present invention to overcome the above described drawbacks associated with current devices. To achieve these and other advantages and in accordance with the purpose of the invention, as embodied and broadly described, the present disclosure describes a valve device with dual directional strainer, which may be used for connecting a tank to an injection pump and to a gauge.

Unlike existing systems, the disclosed device provides a dual directional strainer that is arranged and configured to filter fluids flowing in a first direction and to simultaneously filter fluids flowing in a second direction.

Furthermore, the disclosed device may be designed to handle non-pressurized fluids flowing by gravity (e.g., fluids flowing from a tank to an injection pump). Therefore, the disclosed device can be designed to be more compact with thinner walls and a reduced weight compared to current pipe fittings.

These, together with other objects of the invention, along with various features of novelty that characterize the invention, are pointed out with particularity in the drawings, detailed description, and claims annexed hereto and forming a part of this disclosure. For a better understanding of the invention, its operating advantages, and the specific objects attained by its uses, reference should be had to the accompanying drawings and descriptive matter in which there is described illustrative embodiments of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and forma part of the specification, illustrate embodiments of the present invention, and together with the description, serve to explain the principles of the invention. It is to be expressly understood that the drawings are for the purpose of illustration and description only and are not intended as a definition of the limits of the invention. In the drawings:

FIG. 1 is a front perspective view of a device constructed in accordance with the teachings of the present disclosure.

FIG. 2 is an exploded top perspective view of the device shown in FIG. 1.

FIG. 3 is a front perspective view of the device shown in FIG. 1.

FIG. 4 is a side perspective view of the device shown in FIG. 1.

FIG. 5 is a rear perspective view of the device shown in FIG. 1.

FIG. 6 is a rear perspective view of the device shown in FIG. 1.

FIG. 7 is a side perspective view of a device constructed in accordance with the teachings of the present disclosure.

FIG. 8 is a front perspective view of the device shown in FIG. 7.

FIG. 9 is a rear perspective view of the device shown in FIG. 7.

DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS

The terms “top,” “bottom,” “front,” and “rear” are used in the specification to describe the embodiments of the invention as illustrated in the accompanying Figures. It should be appreciated that in actual use, an embodiment of the invention may be rotated as needed to accomplish the objectives of the invention. As a result of such rotation, the various terms used herein of “top,” “bottom,” “front,” “rear,” and the like may not literally apply to a particular arrangement. Such terms are relative and are used herein to describe the Figures for illustration purposes only and are not intended to limit the embodiments shown to any particular orientation.

Referring now to FIGS. 1-9, exemplary embodiments of a valve device with dual directional strainer 10 in accordance with the present disclosure are illustrated. The valve device 10 may be configured to fluidly connect a tank to an injection pump and to a gauge.

As illustrated in the accompanying Figures, the valve device 10 according to the present disclosure includes a body 11 including a cylindrical wall, the body 11 having a front face 24, a rear face 25, a top face 26, and a bottom face 27; a first arm 19 including a cylindrical wall, wherein the first arm 19 is attached to the rear face 25 of the body 11 and extends perpendicularly from the rear face 25 of the body 11; a second arm 20 including a substantially cylindrical wall, wherein the second arm 20 is attached to the bottom face 27 of the body 11 and extends obliquely from the bottom face 27 of the body 11; a fluid passageway 23 extending through the cylindrical walls of the first arm 19 and the body 11; and a strainer member 12 at least partially disposed within the second arm 20, the strainer member 12 being arranged and configured to strain fluids flowing through the fluid passageway 23 from the first arm 19 through the strainer member 12 and into the body 11 in a first direction and to strain fluids flowing from the first arm 19 through the strainer member 12 and into the body 11 in a second direction, the second direction being opposite of the first direction.

As depicted in the accompanying Figures, the second arm 20 of the disclosed device 10 is attached to the bottom face 27 of the body 11 and extends obliquely from the bottom face 27 of the body 11. The second arm 20 comprises a substantially cylindrical wall and a second arm outlet 30 for removing the strainer member 12 disposed within the second arm 20. The strainer member 12, which is at least partially disposed within the second arm 20 of the device 10, extends through the second arm 20 into the body 11 at the location indicated at 17. The strainer member 12 is arranged and configured to strain fluids flowing through the fluid passageway 23 from the first arm 19 through the body 11 in a first direction toward the first end 21 of the device 10, which in operation may be connected to an injection pump. At the same time, the strainer member 12 is also arranged and configured to strain fluids flowing through the fluid passageway 23 from the first arm 19 through the body 11 in a second direction toward the second end 22 of the device 10, which in operation may be connected to a gauge. In this manner the disclosed device 10 provides a dual directional strainer member 12 that strains fluids flowing toward both the gauge and the injection pump.

In the embodiment depicted in FIG. 2, the strainer member 12 includes a frame 28, on which is mounted one or more layers of mesh 29 or the like having openings of selected size adapted to pass fluids flowing through the device 10 while simultaneously filtering out particulates, dirt, and other unwanted material in the fluid traversing the strainer member 12. The strainer member 12 is used to remove particulates that could clog or damage the injection pump or the gauge. As fluid flows through the fluid passageway 23 toward the first end 21 of the device 10, the strainer member 12 catches and traps any particulates flowing with the fluid so that the fluid flowing through the first end 21 of the device 10 toward the injection pump is essentially particulate-free. Likewise, as fluid flows through the fluid passageway 23 toward the second end 22 of the device 10, the strainer member 12 catches and traps any particulates flowing with the fluid so that the fluid flowing through the second end 22 of the device 10 toward the gauge is essentially particulate-free. Over time, the strained particulates accumulate in the second arm 20. At any time, the particulates can be purged from the second arm 20 by removing a plug member 13 from the second arm 20. The plug member 13 releasably seals off the second arm outlet 30. This allows the accumulated particulates to be purged from the second arm 20 and it allows the strainer member 12 to be removed from the second arm outlet 30 for cleaning or replacement.

FIG. 2 shows one embodiment of a strainer member 12 that may be used with the disclosed device 10. The strainer member 12 may be cylindrical in shape, as illustrated, or it may be configured in any other shape suitable for fitting inside the second arm 20 and removing particulates from fluids flowing through the disclosed device 10. Those skilled in the art will recognize that many variations of strainer members may be utilized with the disclosed device 10, all of which are considered to be within the spirit and scope of the present invention.

As depicted in the attached Figures, the second arm 20 includes a plug member 13 for releasably sealing off the second arm outlet 30 to prevent fluids from flowing out through the second arm outlet 30. As shown in FIG. 2, the second arm 20 may include internal female threads for mating with external male threads on a plug member 13 threadably engaged with the second arm 20. An O-ring seal may be attached to the plug member 13 in order to better prevent leakage between the second arm 20 and the plug member 13. Alternatively, the second arm 20 may include external male threads for mating with internal female threads on a cap threadably engaged with the second arm 20. Additionally, other means for releasably sealing off the second arm outlet 30 may be used and are considered to be within the spirit and scope of the present invention.

The disclosed device 10 may further comprise one or more port members 18 configured for connecting the device 10 to an injection pump. At times, oil and gas operators may desire to inject fluids from two or more injection pumps using only one tank. The one or more port members 18 allow the disclosed device 10 to be used for such a task. If an operator only desires to inject fluids from one injection pump, the one or more port members 18, which are not being used, can be sealed off with a member (e.g., a plug) to prevent fluids from flowing through the one or more port members 18.

As depicted in the accompanying Figures, the second end 22 of the disclosed device 10 may further include a valve member 14 (e.g., a quarter-turn ball valve or the like). As shown in FIGS. 7-9, the valve member 14 may be further connected to an elbow member 15. The elbow member 15 is configured to connect to a gauge (e.g., a pump setting gauge, a level gauge, or the like), which may be used to periodically monitor the performance and accuracy of an attached injection pump. As illustrated in FIGS. 7-9, the elbow member 15 may include a threaded end for threadably engaging a threaded coupling on the gauge, which is a standard part on gauges. Alternatively, the elbow member 15 may include any means for connecting the elbow member 15 to a gauge known by those skilled in the art.

In the embodiment depicted in FIGS. 7-9, the device 10 further includes a second valve member 14, such as a quarter-turn ball valve, attached to the first arm 19 of the device 10. The valve member 14 is further connected to a bulkhead fitting 16. The bulkhead fitting 16 allows the device 10 to easily be attached to a tank or the like.

As can be seen in FIGS. 4 and 7, the first end 21 of the device 10 includes a means (e.g., a threaded end) for connecting the device 10 to a hose fitting or the like. Once a hose fitting has been connected to the first end 21 of the device 10, a hose or the like is then connected to the hose fitting and an injection pump can be connected to the hose.

In one of the embodiments contemplated by the present disclosure, the cylindrical walls forming the body 11, the first arm 19, and the second arm 20 of the disclosed device 10, are thinner and are made with less material compared to the walls of conventional pipe fittings. For example, in one embodiment contemplated by the present disclosure, the walls are approximately 0.110 inches thick. In comparison, the walls of typical prior art fittings are at least 0.165 inches thick. Decreasing the thickness of the walls significantly reduces the weight of the device 10 and decreases production costs by reducing the amount of material used to make the device 10.

In another embodiment contemplated by the present disclosure, the disclosed device 10 is made of stainless steel. In alternative embodiments, the device 10 may be made of other materials suitable for handling hydraulic fracturing fluids and may be provided in various sizes suitable for connecting a tank to an injection pump and to a gauge as disclosed herein.

It is important to note that the construction and arrangement of the elements of the device provided herein are illustrative only. Although only a few exemplary embodiments of the present invention have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible in these embodiments (such as variations in orientation of the components of the system, sizes, structures, shapes and proportions of the various components, etc.) without materially departing from the novel teachings and advantages of the invention.

Though the disclosed device is illustrated in the accompanying Figures and described with its application for use with tanks in the oil and gas industry, note that it is not intended to limit the spirit and scope of the present invention solely for use with tanks in the oil and gas industry. As will be appreciated by those skilled in the art, the disclosed device may be utilized in a wide range of industries and applications.

Many other uses of the present invention will become obvious to one skilled in the art upon acquiring a thorough understanding of the present invention. Once given the above disclosures, many other features, modifications and variations will become apparent to the skilled artisan in view of the teachings set forth herein. Such other uses, features, modifications and variations are, therefore, considered to be a part of this invention, the scope of which is to be determined by the following claims. 

The invention claimed is:
 1. A dual directional strainer comprising: a tubular body having a longitudinal passageway through which fluid can flow; a tubular first arm attached to said body having a passageway through which fluid can flow; a tubular second arm attached to said body having a passageway through which fluid can flow; and a strainer member partially disposed in said second arm and partially disposed in said body; wherein said strainer member is arranged and configured to simultaneously strain fluids flowing through said first arm and into said body in a first direction and to strain fluids flowing through said first arm and into said body in a second direction.
 2. The dual directional strainer according to claim 1, wherein said body includes: a front face; a rear face which faces opposite said front face, wherein said first arm is attached to said rear face; a top face; and a bottom face which faces opposite said top face, wherein said second arm is attached to said bottom face.
 3. The dual directional strainer according to claim 1, wherein said first arm extends perpendicularly from said body and said second arm extends obliquely from said body.
 4. The dual directional strainer according to claim 1, further comprising a first end and a second end on opposite ends of said body, wherein said strainer member simultaneously strains fluids flowing toward said first end of said body and toward said second end of said body.
 5. The dual directional strainer according to claim 1, wherein said second arm comprises a second arm outlet for removing said strainer member disposed within said second arm.
 6. The dual directional strainer according to claim 5, wherein said second arm further includes a plug member that releasably seals off said second arm outlet.
 7. The dual directional strainer according to claim 1, wherein said strainer member comprises: a frame; and one or more layers of mesh mounted to said frame, said mesh having openings adapted to pass fluid flowing through said dual directional strainer while simultaneously filtering out particulates.
 8. The dual directional strainer according to claim 1, wherein said first arm is arranged and configured with said second arm to form an angle that ranges from 45 degrees to 179 degrees.
 9. The dual directional strainer according to claim 1, wherein said dual directional strainer is arranged and configured to strain fluids via gravity flow.
 10. The dual directional strainer according to claim 1, wherein said second arm is attached to said first arm.
 11. A valve device comprising: a tubular body having a longitudinal passageway through which fluid can flow; a tubular first arm attached to said body having a passageway through which fluid can flow; a tubular second arm attached to said body having a passageway through which fluid can flow; and a strainer member partially disposed in said second arm and partially disposed in said body. 